For any techno-gadget-geeks out there...

I want to play my Creative Zen Vision M in my car (2000 Ford Explorer, though I doubt the car itself matters).

I know there are many transmitters out there. Some are around 70-80 dollars, others around 30-40...not quite sure what the higher ones provide.

If the transmitter will also charge the player, that's great, but it's not essential. Mainly I want reliability and sound quality. Can anyone recommend a good product that they've used?

Thanks,
Kevin